
These are basic punctuation rules. Learn how to use a period, a comma, a question mark, an exclamation point, and quotation marks.
Period
A period goes at the end of a sentence.

Comma
There are many ways to use a comma. Here are two examples:
- Before the word but in between two clauses
- Before the word and in between two clauses
Another way to use a comma is when you answer a yes-no question:

Use a comma after an introductory clause:

You can use time clauses as introductory phrases. Here are some time clauses:
When you graduate, you can go to a new school.
In 1981, nobody had an email address.
Before we met, Ana lived in Singapore.
Yesterday, there were a lot of frogs in our backyard.
In the future, everyone will have a computer.
At 9:30, I’m going to come home.
, comma
? question mark
! exclamation point
” quotation marks